Correct/improve maybe_emit_free_warning (PR middle-end/98166, PR c++/57111, PR middle...

Correct/improve maybe_emit_free_warning (PR middle-end/98166, PR c++/57111, PR middle-end/98160).

Resolves:
PR middle-end/98166 - bogus -Wmismatched-dealloc on user-defined allocator and inlining
PR c++/57111 - 57111 - Generalize -Wfree-nonheap-object to delete
PR middle-end/98160 - ICE in default_tree_printer at gcc/tree-diagnostic.c:270

gcc/ChangeLog:

	PR middle-end/98166
	PR c++/57111
	PR middle-end/98160
	* builtins.c (check_access): Call tree_inlined_location
	fndecl_alloc_p): Handle BUILT_IN_ALIGNED_ALLOC and
	BUILT_IN_GOMP_ALLOC.
	call_dealloc_p): Remove unused function.
	(new_delete_mismatch_p): Call valid_new_delete_pair_p and rework.
	(matching_alloc_calls_p): Handle built-in deallocation functions.
	(warn_dealloc_offset): Corrct the handling of user-defined operators
	delete.
	(maybe_emit_free_warning): Avoid assuming expression is a decl.
	Simplify.
	* doc/extend.texi (attribute malloc): Update.
	* tree-ssa-dce.c (valid_new_delete_pair_p): Factor code out into
	valid_new_delete_pair_p in tree.c.
	* tree.c (tree_inlined_location): Define new function.
	(valid_new_delete_pair_p): Define.
	* tree.h (tree_inlined_location): Declare.
	(valid_new_delete_pair_p): Declare.

gcc/c-family/ChangeLog:

	PR middle-end/98166
	PR c++/57111
	PR middle-end/98160
	* c-attribs.c (maybe_add_noinline): New function.
	(handle_malloc_attribute): Call it.  Use ATTR_FLAG_INTERNAL.
	Implicitly add attribute noinline to functions not declared inline
	and warn on those.

libstdc++-v3/ChangeLog:
	* testsuite/ext/vstring/requirements/exception/basic.cc: Suppress
	a false positive warning.
	* testsuite/ext/vstring/requirements/exception/propagation_consistent.cc:
	  Same.

gcc/testsuite/ChangeLog:

	PR middle-end/98166
	PR c++/57111
	PR middle-end/98160
	* g++.dg/warn/Wmismatched-dealloc-2.C: Adjust test of expected warning.
	* g++.dg/warn/Wmismatched-new-delete.C: Same.
	* gcc.dg/Wmismatched-dealloc.c: Same.
	* c-c++-common/Wfree-nonheap-object-2.c: New test.
	* c-c++-common/Wfree-nonheap-object-3.c: New test.
	* c-c++-common/Wfree-nonheap-object.c: New test.
	* c-c++-common/Wmismatched-dealloc.c: New test.
	* g++.dg/warn/Wfree-nonheap-object-3.C: New test.
	* g++.dg/warn/Wfree-nonheap-object-4.C: New test.
	* g++.dg/warn/Wmismatched-dealloc-2.C: New test.
	* g++.dg/warn/Wmismatched-new-delete-2.C: New test.
	* g++.dg/warn/Wmismatched-new-delete.C: New test.
	* gcc.dg/Wmismatched-dealloc-2.c: New test.
	* gcc.dg/Wmismatched-dealloc-3.c: New test.
	* gcc.dg/Wmismatched-dealloc.c: New test.